-63.34% is the change from 641 to 235
Calculation steps:
[( 235 - 641 ) ÷ 641] x 100 = -63.34%
Formula
Percentage change = [(235 - 641) / 641] x 100
Subtract the new number by the original number
235 - 641 = -406
-406 ÷ 641 = -0.6333853354134166
-0.6333853354134166 x 100 = -63.34%